Other Investments Other Investment (Narrative) (Details)	12 Months Ended
	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Investments, All Other Investments [Abstract]
Equity Securities without Readily Determinable Fair Value, Amount	$ 137,000	$ 137,000
Federal Home Loan Bank Stock	$ 13,100,000	11,000,000
Number of Limited Partnerships	2
Investment in a limited partnership	$ 3,350,000	3,890,000
Investment Tax Credit	1,544,000	927,000	$ 269,000
Amortization on Investment in Limited Partnership	$ 1,270,000	$ 680,000	$ 214,000